Write the functions of

(a) cry 1AC gene

(b) RNA interference (RNAi)

(a) The functions of cry 1AC gene are as follows:

- It is useful in controlling cotton bollworms.

- It encodes the pro-toxin present in the host cell.

- It also produces proteins.

(b) The functions of RNA interference (RNAi) are as follows:

- It is useful in all eukaryotic organisms.

- It is a method of cellular defense.

- It produces dsRNA.

- It silences specific mRNA; this is possible by complementary dsRNA molecule.

- It prevents infestation by nematodes.